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All Metal Locking Nuts

A selection of all metal locking nuts, including castle nuts and prevailing torque type locking nuts such as binx nuts, bent beam turret nuts and elliptically deformed locking nuts. All metal locking nuts generally have better performance than nyloc nuts, and as such are preferred for critical applications such as in the rail and aerospace industry. All metal locking nuts are also specified in applications where the fastener will be exposed to heat, and would melt the nylon in a nyloc nut. Prevailing torque locking nuts are perhaps the most effective locking nut, however there are numerous different options available. All have a locking feature which increases the torque level required to fasten and remove the nut from its mating part, essentially making them less prone to loosening from vibration. Prevailing torque locking nuts are re-useable, but it is worth noting that their effectiveness because less so after each use.